{"id":"CVE-2026-93757","aliases":[],"cve":{"records":[{"id":"CVE-2026-93757","source":"Wordfence","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-09-18T16:43:42.651Z","published":"2026-10-29T03:39:15.801Z","modified":"2026-10-29T10:45:42.405Z"}],"publishers":[{"name":"Wordfence","role":"CNA","organizationId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","modified":"2026-10-29T03:39:15.801Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-10-29T10:45:42.405Z"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/9adbe55e-f1a1-4fa8-b28d-539d90d81c68?source=cve","tags":[],"source":"Wordfence"},{"url":"https://plugins.trac.wordpress.org/browser/wild-apricot-login/tags/1.0.18/Modules/Authorization/WaLogin/Controller.php#L347","tags":[],"source":"Wordfence"},{"url":"https://plugins.trac.wordpress.org/browser/wild-apricot-login/tags/1.0.18/Modules/Core/WaApi/Client.php#L22","tags":[],"source":"Wordfence"},{"url":"https://plugins.trac.wordpress.org/browser/wild-apricot-login/tags/1.0.18/Modules/Core/Module.php#L159","tags":[],"source":"Wordfence"},{"url":"https://plugins.trac.wordpress.org/browser/wild-apricot-login/tags/1.0.18/Modules/Synchronization/UserSynchronizer.php#L36","tags":[],"source":"Wordfence"},{"url":"https://plugins.trac.wordpress.org/browser/wild-apricot-login/tags/1.0.18/Modules/Core/Module.php#L112","tags":[],"source":"Wordfence"}],"weaknesses":[{"id":"CWE-287","description":"CWE-287 Improper Authentication","source":"Wordfence"}],"applicability":[],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-10-29T10:34:17.390489Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"no"},{"name":"Technical Impact","value":"total"}]}]},"title":"Wild Apricot Login <= 1.0.18 - Authentication Bypass via SSO Email-Collision Account Binding on Multisite","titleSource":"Wordfence","descriptionSource":"Wordfence","description":"The Wild Apricot Login plugin for WordPress is vulnerable to Authentication Bypass via SSO Email-Collision Account Binding in all versions up to, and including, 1.0.18. When no WildApricot contact-ID mapping is found for an incoming SSO login, the plugin falls back to a network-global `get_user_by('email', ...)` lookup in `Module.php` to resolve a WordPress user, then `UserSynchronizer::syncWaContact()` binds and `Controller::login()` issues a session cookie via `wp_set_auth_cookie()` for that resolved user — both guarded only by `is_super_admin()` — without ever requiring proof of ownership of the matched WordPress account such as a password, local account-linking confirmation, inbox verification, or administrator approval. This makes it possible for attackers with custom-level WildApricot membership access to authenticate as an existing WordPress subsite administrator on a path-based Multisite network, obtaining a valid network-global authentication cookie for the victim without their credentials. Exploitation requires that the attacker control a WildApricot contact whose email address matches the target WordPress administrator's email — achievable via a public zero-fee membership application on the connected WildApricot organization — and that they complete the SSO flow on any subsite where Wild Apricot Login is active; because WordPress user identities and authentication cookies are network-global, the cookie issued on that subsite is equally valid on any other subsite where the victim user holds an administrator role.","score":7.5,"severity":"high","published":"2026-10-29T03:39:15.801Z","modified":"2026-10-29T10:45:42.405Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"wild-apricot","name":"Wild Apricot Login","platforms":[],"versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.0.18","versionType":"semver"}],"defaultStatus":"unaffected","cpes":[],"source":"Wordfence","url":"https://www.cve.org/CVERecord?id=CVE-2026-93757"}],"remediation":[],"references":["https://www.wordfence.com/threat-intel/vulnerabilities/id/9adbe55e-f1a1-4fa8-b28d-539d90d81c68?source=cve","https://plugins.trac.wordpress.org/browser/wild-apricot-login/tags/1.0.18/Modules/Authorization/WaLogin/Controller.php#L347","https://plugins.trac.wordpress.org/browser/wild-apricot-login/tags/1.0.18/Modules/Core/WaApi/Client.php#L22","https://plugins.trac.wordpress.org/browser/wild-apricot-login/tags/1.0.18/Modules/Core/Module.php#L159","https://plugins.trac.wordpress.org/browser/wild-apricot-login/tags/1.0.18/Modules/Synchronization/UserSynchronizer.php#L36","https://plugins.trac.wordpress.org/browser/wild-apricot-login/tags/1.0.18/Modules/Core/Module.php#L112"],"sources":[{"name":"CVE","id":"CVE-2026-93757","modified":"2026-10-29T10:45:42.405Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-93757"}],"assessments":[{"source":"Wordfence","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.5}],"sourceAffected":[],"observedAt":"2026-10-29T14:48:56.639Z","kev":{"status":"not-listed","checkedAt":"2026-10-31T14:10:32.801Z"},"coverage":[{"source":"NVD","status":"available","checkedAt":"2026-10-29T05:25:31.467Z","attemptedAt":"2026-10-29T05:25:31.467Z"},{"source":"GHSA","status":"no-result","checkedAt":"2026-10-29T05:25:31.467Z","attemptedAt":"2026-10-29T05:25:31.467Z"},{"source":"EUVD","status":"available","checkedAt":"2026-10-29T05:25:31.467Z","attemptedAt":"2026-10-29T05:25:31.467Z"},{"source":"EPSS","status":"no-result","checkedAt":"2026-10-29T05:25:31.278Z","attemptedAt":"2026-10-29T05:25:31.278Z"}],"evidence":[{"source":"NVD","id":"CVE-2026-93757","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93757","modified":"2026-10-29T04:18:43.763","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","checkedAt":"2026-10-29T05:25:31.467Z"},{"source":"ENISA EUVD","id":"EUVD-2026-112591","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-112591","modified":"Oct 29, 2026, 3:39:15 AM","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","checkedAt":"2026-10-29T05:25:31.467Z"}],"aiSummary":{"text":"Wild Apricot Login plugin versions up to 1.0.18 have an authentication bypass weakness. An attacker with custom-level WildApricot membership access can authenticate as a WordPress subsite administrator without credentials if they control a WildApricot contact with a matching email address. This requires access to a WildApricot organization and completion of the SSO flow on a subsite.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-10-30T09:33:57.275Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-93757"}]}}